Extended Strong's Greek Lexicon (Abbott-Smith based)
well/well done!
Usage: εὖ adv. (prop. neuter of old Epic ἐΰς, good, noble) [in LXX, εὖ γίγνεσθαι, εὖ ποιεῖν (יָטַב) ;] well: εὖ γιν., Eph.6:3 (LXX); εὖ ποιεῖν, with dative (cf. Sir.12:1-2), to do good, Mrk.14:7 (where Nestle suggests εὐποιεῖν, which see); εὖ πράσστειν, to fare well, Act.15:29; in replies (= εὖγε), good! well done! Mat.25:21, 23 Luk.19:17 (εὖγε, WH, txt.).† εὖ-γε, adv., in replies, well! good! well done!: Luk.19:17 (WH for Rec. εὖ, which see).† (AS)